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Background: Musculoskeletal disorders are very common among gym/fitness instructors. Through their personal sessions or while supporting their clients during their training sessions, gym instructors do high intensity work. This may be the most common causes of injuries and pain. Moreover, high prevalence of work related musculoskeletal disorders has been reported among them. Objective: This literature review aims to describe previous studies and its findings of musculoskeletal pain and injuries among gym/ fitness instructors. Methods: In this study, the authors explored 10 related articles from different databases including Pub Med, Google Scholar, Scopus, and Research Gate. The selected keywords were classified into two categories as follows: - 1. Related to Ergonomics, exercises, Fitness/Gym Instructors,2. Related to MSDs such as Musculoskeletal Disorders, musculoskeletal pain, and occupational injuries. Results and conclusion: The prevalence of symptoms varies among different body regions and commonly affected areas were low back and knees. Also, prevalence of musculoskeletal injuries is higher in male instructors than in females.gym/fitness instructors job has several risk factors that may be related to ergonomics, high intensity, weight lifting, environment, nature of work, repetitive movements. So, they are prone in musculoskeletal pain and injuries and there is scarce in literature also. From this literature review, authors suggest the fitness industries to follow ergonomic principles and to adapt MSDs prevention strategies. To fill the research gap, further studies can conduct on prevalence of symptoms on musculoskeletal disorders among gym goers. Keywords: Ergonomics, Musculoskeletal Disorder, Gym instructors, Fitness, Occupational Injuries.

Introduction: Kabaddi is one of the most popular games, which makes it our national pride. Kabaddi requires a lot of power, strength, flexibility, agility, speed, breath control and wariness. The game comes under contact sports and hence injuries are common. Muscle Energy Technique (MET) is a form of manual therapy used to relax the muscles via autogenic or reciprocal inhibition and lengthen the muscle, which uses muscle’s own energy in the form of gentle isometric contraction. The purpose of this study is to find out the effectiveness of MET on improving hamstring muscle flexibility, active knee extension (AKE) range, and agility in high school level kabaddi players. Subjects: 30 female amateur kabaddi players Methodology: 30 high school level Kabaddi players were assessed and selected based on the inclusion and exclusion criteria, and assigned into two groups. Group A (experimental n=15) received MET along with conventional exercises and Group B received Conventional flexibility exercises alone for 5 consecutive days. Pre-post and a follow-up measurement of hamstring flexibility, AKE and agility was taken using flexometer, 90-90 test and agility T-test. Results: Statistical analysis was done using paired and unpaired t-test. In paired t-test, the hamstring muscle flexibility improved significantly on day 5, on follow-up day 8 measurement it showed reduction in flexibility but not significant for both groups. The AKE of right and left knee joint has significantly improved on day 5 and there was significant reduction on day 8. Whereas the agility for both groups has significantly improved on day 5 and 8. On unpaired t-test, there is significant difference between both groups for all 3 outcomes. Conclusion: The Muscle energy Technique is effective on improving hamstring muscle flexibility, Active knee extension range and agility in 5 day MET programme. Therefore, concluded that Muscle Energy Technique is effective and can be administered on-field prior to sports events, and thereby improve player’s performance. Keywords: MET, Kabaddi, Hamstring injuries, Flexometer test, active knee extension test, agility T-test.

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